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(110 Model.) 3 Sheets-8heet 1.

T. H. LATIMER & F. A. FLETCHER. PAPER MAKING MACHINE.

No. 448,441. Patented Mar. 17, 1891..

WITNESSES:

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(No' Model.) 3 Sheets-Sheet 12.

T. H. LATIMER & F. A. FLETCHER. PAPER MAKING MAGHINE.

No. 448,441. Patented Mar. 17, 1891.

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UNITED STATES PATENT FFICE.

THOMAS H. LATIMER AND FRANK A. FLETCHER, OF XVATERTOW'N, NEW YORK, ASSIGNORS TO THE BAGLEY & SEYVALL COMPANY, OF SAME PLACE.

PAPER-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 448,441, dated March 17, 1891.

Application filed November 28, 1890. Serial No. 372,791. (No model.)

all 1072,0711, it may concern: of the preferred form of the axial-support or Be it known that we, THOMAS ll. LATIMER journal-bearing of the couch-roll. Figs. 5, G, and FRANK A. FLETCHER, of Vatertown, in and 7 are side views of modifications of our the county of Jefferson, in the State of New invention, and Fig. 8 illustrates the mode of 5 York, have invented new and useful Iniapplying or removingthe wire-cloth to or from provements' in Paper-Making Machines, of the couch-roll. which the following,taken in connection with Similar letters of reference indicate come the accompanying drawings, is a full, clear, sponding parts. and exact description. A represents the main supporting-fret me of IO This invention relates to the axial supthe machine, and C denotes the lower couchports of the lower couch-roll of a Fourdrinier roll, on which the endless wire-cloth atravels. paper-making machine, said roll carrying the The top of the side wall of said frame we endless wire-cloth which receives the diluted form with an opening or depression cl directly pulp and forms the same into paper. Said under the axis of the aforesaid couch-roll, I5 wire-cloth has to be occasionally renewed, and which opening or depression is of such a depth to remove the old andintroduce the new wireand length as to bring it beneath the plane of cloth it was hitherto necessary to lift the the bottom portion of the couch-roll. The lower couch-roll out of its axial bearings to axial support of the couch-roll over the dean elevation above the top of the frame in orpression (l is detachably connected to the 2o der to allow the wire-cloth to be slipped onto frame, and may be constructed in various the said roll endwise of the latter. ways.

The object of this invention is to obviate Figs. 1 to l illustrate our preferred form of thenecessityof liftingthe couch-rollabove the the said axial-support, and it consists of a frame of the machine when desired to renew truss or frame-section b, which spans the de- 25 the wire-cloth, and thus facilitate the latter pression d and rests with its ends on the top operation and reduce the loss of time reof the frame, and is preferably countersunk quired to effect the renewal of the wire-cloth therein to bring the top of the truss b flush in the machine; and to that end the invenwith the top of the frame, as shown in Fig. 1 tion consists, essentially, in the combination of the drawings. The joints of the seats of 3 of the main supporting-frame formed with a the truss are so made as to allow the truss to depression in the top of its side wall under be slipped sidewise out from the frame. To the axis of the lower couch-roll and an axial retain the truss on the frame, a dowel-pin may support for the couch-roll detachably 0011- be inserted in the end of the truss at the nected to the frame, as hereinafter more fully tending side of the couch-roll and into the 35 described, and specifically set forth in the subjacent part of the frame. The opposite claims. end of the truss we prefer to fasten to the Our invention is susceptible of several frame by means of a tap-bolt, as indicated by modifications without departing from the dotted lines in Fig. 1 of the drawings. spirit of the invention. The journal-box c of the couch-roll we 9 4 In the annexed drawings,Figure l is aside prefer to mount reinovably on the trulss-by elevation of that part of aFourdrinier paperproviding the top of the latter with a socket making machine to which our invention per- 5 and forming the bottom of the journal-box tains. Fig. 2 is a top plan view of the re- 0 with a hub 25, which enters the aforesaid movable frame-section with the end of the socketand thus preventslateral displacement 45 couch-roll mounted thereon shown in dotted of said journal-box.

lines. Fig. 3 is a detached perspective view In replacing the wire-cloth a a stout metal of the removable frame-section or truss which sleeve Z is slipped with one end onto the trunspans the opening or depression made in the nion n of the couch-roll, as shown in Fig. 8 top of the frame to obviate the necessity of of the drawings and into the opposite end of 1 5o lifting the couch-roll above the top of said the sleeve is inserted the end of a pole passframe. Fig. at is a detached perspective view ing through the wire-cloth fold. By slightly lifting the'outer end of the said pole the end of the couch-roll 0, connected to said pole as aforesaid, is raised sufficiently to relieve the journal-box c and truss Z) of the weight of the couch-roll and allow the said journal-box to be lifted and slipped sidewise from the truss, and said truss to be lifted and removed sidewise out from the main franie A after the tap bolt is removed and the dowel-pin deprived of its hold. The removal of the truss 1) allows the wire-cloth to be passed sidewise through the opening or depression (1 and shifted onto the couch-roll v lengthwise of the latter. After the wire-cloth is placed in its requisite position on the couch-roll the truss Z) is readily replaced across the depression (1, and the journal-box mounted and secured to the top of said truss to support the couch-roll by its trunnion. The sleevel is then to be removed from the said trunnion. The journal-box 0 may be made small enough to come within the circumference of the couchroll and allow it to be left on the trunnion of the couch-roll during the aforesaid operation of applying the wire-cloth. The bottom portion of the journal-box a may be formed integral with the truss b, as represented in Figs. 5 and 6 of the drawings; or the entire journalbox may be formed directly on the truss, as

shown in Fig. 7 of the drawings. In either case it will be necessary to formthe truss with an elevated central portion, as shown.

. completely span the depression cl, but may be simply of the 'form of a pedestal P, mounted in the depression and bolted to the frame, as shown in Fig. 6 of the drawings.

Other modifications in regard to the detail construction of the truss b and journal-box 0 will readily suggest themselves to an experienced mechanic, and therefore we do not limit ourselves to any specific form of said parts, the salient features of our invention being the opening or depression (1 in the top of the side wall of the frame A and the detachable connection to said frame of the axial support of the couch-roll,which greatly facilitates the operation of applying or replacing the endless wire-cloth to the couch-roll.

What we claim as new, and desire to secure by Letters Patent, is

1. In a Fourdrinier machine, the combination of the frame formed with a depression in the top of its side wall under the axis of the lower couch-roll, and an axial support for the couch-roll detachably connected to the frame to allow the wire-cloth to be removed from and replaced on the couch-roll without the necessity of lifting the said roll above the top of the frame, as set forth.

2. In a Fourdrinier machine, the combination of the frame formed with a depression in the top of its side wall directly under the axis of the couch-roll. a truss across said depression and detachably seated on the frame, and

a journal-bearing for the axis of said couchroll on the said truss, as set forth.

3. In a Fourdrinier machine, the combination of the frame formed with a depression in the top of its side wall directly under the axis of the lower couch-roll, atruss spanning said depression and seated on the frame removably sidewise therefrom, detachable fastenings retaining the truss on the frame,and a journalbearing for the couch-roll detachably mounted on the truss, as set forth.

4. In a Fourdrinier machine, the combination of the frame formed with a depression in the top of its side wall directly under the axis of the couch-roll, a truss spanning the said depression and seated on the frame removably sidewise therefrom and provided with a socket in its top, detachable fastenings retaining the truss on the frame, and a journal-box for the couch-roll mounted on the truss and provided on its bottom with a hub entering the afore said socket, as set forth.

In testimony whereof we have hereunto signed our names this 21st day of November, 1890.

THOMAS H. LATIMER. [n s.] FRANK A. FLETCHER. L. s]

\Vitnesses:

JOHN H. NEUTZE, CHAS. D. BINGHAM. 

